Extractor-cap.



H. D. CORNWALL.

EXTRACTOR CAP.

APPLICATIGN FILED NOV-1.1915.

. Patgnted Dec. 26, 1916.

,mal plane, therebvpermittingthe gradual nx'raacron-cnr.

Specification of Letters Patent.

Patented Dec, 26, 1915.,

Application filed November 1, 1915. Ser1a1Ho.59,073.

tles, jars, and the like, and is particularly adapted for use withlmilk bottles.

,The primarygobject of the inventionisto .improveithis type of cap in at least .three' oharacteristicsz First to improve the means provided for gripping the extractor portion of the cap. Second, to render the vextractor more efiicient in the removal of the-ca item the bottle, due to theiormation 0 oppositelyextending stitches forming spaced lifting parts preferably positionedon the capat -an eccentric po nt and adjacent one edge and having gripping portions or handles associated therewithfand normally lyingin a.ch0r,d;or base of a segment of -.t he disk so that I an inwardly ,inclined ;rad1al ,pull pp'on the handles when moved to vertical A position produces a lever- ,ageaotionexertedat anangleto the plane of the diskand ,across1the longitudinal, axis of the stitches and the (glrsipping handles, thereby tending to first cent edge of the; diskirom the: bottle insnoh a manner that it lifts at ,an angle to ts norand,,easy removal, not onlyof the adjacent edge portion, but of the remaining peripheralportions ofthefdisk. Third to increase the strength, rigidityand efiectiveness of the association ofthe parts. B-y connecting the extractor to the disk by tWL -,$paced stitches and by exerting a nniform and simultaneous pull uponQboth stitches, the tendency of, either to tilt and; bend is. Imutralized and the efficiency and possible pulling strength. ,of the. extractor, is. increased.

Another essential object relates to they production of an extractor cap that will stack? perfectly in the tube containersfrom which they arei withdrawn .as applied to, bottles, by the: usual automatic,cappingr machines.

Other objects and advantages will appear from the [following description, taken fin place the adja-- connection with the accompanying drawings, in which- Figure 1 is a top plan View of the extractorcap. Fig. 2 is an enlarged cross section on line 22, ,Fig. 1, illustrating the cap as positioned in the neck of a bottle shown indotted lines. Fig. 3 is an enlarged perspective view of the extractor portion before its application to the cap.

.Caps of this character usually comprise disks of cardboard suitably treated to prevent deterioration, and are usually made circular to fit snugly in the necks of bottles to efiectively close the same against escape of the bottled liquid and against the entrance of dust and other foreign matter. The extracting device which, together ,Wlijhihe disk 1, forms the subject-matter of the present invention preferablycomprises a relatively narrow exceedingly thin strip or wire ;2 of suitable material, such a'sJsheetmetal, securel applied to the upper surface of the cap and-lying in a plane substantially coincident with the upper'surface of the disk and wholly within the periphery thereof, and in=the figures of the drawing the thickness of the metal is somewhat exaggerated so that the construction and arrangementwill clearly ap ear.

In accomplishing the o jects of this invention, the intermediate portion of the wire 2' is firmly secured to the disk --1 so as .to form oppositely extending v end portions 3 and'-4 adapted to be raisedto a vertical position and to formin contact a unitary gripping portion or handle, clearly shown in, dotted lines Fig. 2 ,and llwdesire to claim broadly the intermediate attachment of, the wire or strip 2 to the 2, leaving the 'spurs u nited totheinner a.dja cent edges of the apertures and forming a continuous central portion 7 adapted to liej uponthe upper surface. of the disk 1' whe n the spurs v'5 and 6- are forced through the disk and clenched in opposite directions into contact with the lower face of said disk, and preferably, as indiispeeili eallyaadaptedfor rendering efficient -ari'd'ea$ tlie removal of the cap from a bottle by the particular unitary grasping handle described.

The wire 2 preferably, as shown, extends longitudinally of a chord or base of a segment of the disk 1 and wholly to one side of the diameter of said disk parallel with said chord and traverses the radii of said segment and is attached to said disk at an eccentric point or points adjacent the periphery thereof, and I desire to claim as preferable the transverse radial, eccentric attachment of the wire, both separately and in combination with the features hereinbefore described. Preferably, the opposite end portions 3 and 4:- of the wire are provided with apertures 8 and -9-, respectively, increasing the gripping efliciency of said portions, due to the fact that the fiesh of the thumb or fingers of the operator will be pressed into said apertures to prevent their slipping from the handle.

In the actual operation of extracting the cap when positioned in a bottle neck, the

end portions -3 and 4 are bent upwardly until their terminal portions are in substantial contact, as shown. in Fig. 2, and the normal natural way of pulling upon the gripping handle is upwardly and away from the edge of the cap,that is, an inwardly inclined substantial radial pull across the longitudinal axes of the stitches 5 and --6-, the ends of which extend in opposite directions upon the lower face of the disk,

and this character of construction allows the easy removal, of the adjacent edge of the disk and the gradual and easy removal of the remalning peripheral portions of the disk from the neck of the bottle without exerting any appreciable strain upon the stitches longitudinally of their axes or in a line with the stitch, but rather at substantially a right angle to the stitch, whereby the tendency to bend and release the clamping portions of the stitches fro-m engagement with the disk is practically eliminated.

The double handle formed of the opposite end portions 3 and -4 constitutes a, greatly improved gripping surface, andthe uniform and simultaneous pull upon the end portions -3 and 4 exerts a uniform and simultaneous pull upon the stitches and 6- and an equalizing tilting tendency upon the intermediate portion 7, whereby the tendency. to bend or tilt is neutralized and the possible pulling strength of the extractor greatly increased.

Although I have shown and described one particular construction, arrangement and form. of the parts, I do not desire to limit myself to the same, asm'any changes may be made in the details of construction, ar-

rangement and form without departing adapted to be bent respectively about the said central portion and having portions adapted to be brought into contact to form I a unitary gripping handle.

A closure comprising a disk of flexible material having an elongated metal strip arranged flat face down on the, top face of thedisk and having a relatively short central portion secured to the disk by spurs punched from the strip and Positioned on opposite sides of said central portion and passed through the disk and clenched into engagement with the lower face thereof, and

opposite relatively. long free end parts,

adapted to be bent respectively about the said central portion and having portions adapted to be 'broughtinto contact to form a unitary gripping handle, said free endparts having openings adapted to register when the said portions are in contact.

3. A closure comprising a disk of flexible material having an elongated metal strip arranged fiat face down on the top face of the disk and having a relatively short central portion secured to the disk by spurs punched from the strip and positioned on opposite sides of said central portion and passed through the disk and clenched in opposite directions toward the edge of the disk and into engagement with the lower face thereof, and opposite relatively long free end parts adapted to be bent respectively about the said central portion and having portions adapted to be brought into contact to form a unitary gripping handle; I

4. A closure comprising a disk of flexible material having an elongated metal strip arranged fiat face down on the top face of the disk and having a relatively short central portion secured to the ,,disk at an eccentric lIO point thereon and nearone edge of the disk, a pair of spurs punched from the strip and positioned on opposite sides of said central portion and passed through the disk and.

clenched into engagement With the lower face thereof, and opposite relatively long 1 free end parts extending longitudinally of a chord of the disk and terminating adjacent the edge of the disk and adapted to be 

